With a quantity of two pieces, the Valve,tire is the most used part in the TIRES diagram.
Parts such as the Tires: Tire, Tire, Balancer-wheel,20g,si, Balancer-wheel,10g,si are included in the En450a3 454ltd 1987 Usa California Canada Tires parts fiche.
The component with the lowest price in the TIRES schematic is the Balancer-wheel,10g,si.